Table To Repopulate A Form

Making a form where a patient will fill out check boxes and after submission would like to present their submitted form back if they choose the option and be able to edit the data entered. What I am wanting to do is repopulate the form, but the checkboxes will need a database with this information that will then go to a php script and take the values entered into the various checkboxes and check those values from the database that were entered origionally. So lets say the database haspid - int(5) auto_increment primary keypatient_first - varchar(30) first namepatient_last - varchar(50) last namearthritis - bool or what?copd - bool or what?tin ear -bool or what?What would be the best to check against to repopulate does a true false make sense or should it either be NULL or the actual condition (just kidding about the tin ear)?